Commercial Sizes & Dimensions

Typical size ranges, popular configurations, and how to choose the right dimensions for your commercial steel building.

  • Width 30' - 150'+
  • Length 40' - 200'+
  • Eave Height 10' - 30'
  • Engineering NBC 2020

Commercial Size Ranges

Commercial buildings are available in a wide range of sizes. Width, length, eave height, and interior clearance are all customized to your program, equipment, and site. Use these ranges as a starting point.

Width 30' - 150'+
Length 40' - 200'+
Eave Height 10' - 30'

Sizing your commercial building

01

Start with program, not footprint

Before you pick a width and length, list what goes inside: equipment, racking, vehicles, staff count, and future expansion. The internal program drives the building, not the other way around.

02

Width drives cost; length adds flexibility

Clear-span width above 80\' meaningfully increases primary frame cost. Adding length in 20-30\' bay increments is the most cost-effective way to grow square footage.

03

Eave height is about equipment, not aesthetics

Set eave height from the tallest object or rack plus clearance for lights, sprinklers, and crane runways. Every 4\' of added eave increases wall area and frame weight. Use our climatic data map to look up NBC 2020 loads for your site.

04

Plan for the future now

Designing a structure to be extended later is inexpensive at the engineering stage and expensive afterwards. If expansion is plausible within 10 years, we'll engineer the knockout end wall and foundation into the original design.